Today’s Big Deal at Kindle UK is is twenty-two books in the Alex Cross series by James Patterson for £0.99 each. Twenty-two books is way too many for me to list individually, so you’ll just have to go look for yourself, but there seems to be a nice mix of older and newer books.
Twenty-two books is also too many for me to check them all at Kobo UK, but I spot-checked several, and all that I checked were also £0.99 at Kobo UK.
Find the books at the Kindle UK Big Deal page